干旱区生态环境知识资源中心(Arid): 欧亚大陆不同生态区植被生长对降水响应的季节变化规律

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	欧亚大陆不同生态区植被生长对降水响应的季节变化规律
其他题名	Seasonal changes in vegetation response to precipitation across eco-regions over Eurasia
	孙立群; 李晴岚; 陈骥; 牛俊
来源期刊	生态学报
ISSN	1000-0933
出版年	2018
卷号	38 期号:22 页码:8051-8059
中文摘要	欧亚大陆是一带一路战略规划的核心区域,了解欧亚大陆植被生长对降水的响应机制是该战略顺利实施的科学与生态基础。采用1982-2015年的归一化植被指数NDVI(Normalized Difference Vegetation Index)和全球气象格点数据,通过计算偏相关系数,排除温度及日照辐射的共同作用,分析植被对降水的响应关系(R_(NDVI-Prep))在不同季节、不同生态区的分异特征。在夏季,R_(NDVI-Prep)为显著正相关的地区广泛地分布在35°-60°N之间的欧亚大陆干旱、半干旱地区以及南亚次大陆西北和南部地区;在春季和秋季,R_(NDVI-Prep)为显著正相关的地区分布则相对于夏季显得更为集中,某些显著相关的区域的边界和现有的生态区划边界有很好的一致性。使用17年为一个周期的时间滑动窗口,分析不同季节上R_(NDVI-Prep)从1982至2015的变化规律,发现夏季植被呈现对降水依赖的地区所处纬度要高于春、秋两季。中亚干旱、半干旱生态区的植被在春、夏两季对降水依赖较强;南亚次大陆西北部地区的干旱、半干旱及东南亚的雨林地区在夏、秋两季对降水依赖较强,且秋季的分布最为集中。以生态区为视角,对欧亚大陆的植被与降水的关系有了更为深入的了解,可以为不同区域应对和适应气候变化提供决策依据。
英文摘要	Eurasia is the core region of Belt and Road strategic planning.A good understanding of the response of vegetation to precipitation is the scientific and ecological foundation for the implement of this strategic plan.This study used the Normalized Difference Vegetation Index(NDVI)and the global gridded climatic datasets for the period from 1982 to 2015 to analyze the different seasonal and spatial response of vegetation growth to precipitation(R_(NDVI-Prep))by using the partial correlation coefficient method,which removes the combined influence of temperature and solar radiation on vegetation.In summer,we found the regions with positive R_(NDVI-Prep)were in the arid and semi-arid regions of Eurasia with the latitudes from 35°N to 60°N and in the northwestern part and southern part of the South Asia Sub-Continent.In spring and autumn,the area with significant positive R_(NDVI-Prep)relationship was more concentrated distributed than that in summer.The boundaries for some regions with significant R_(NDVI-Prep)correlation were consistent with the current eco-region map.We applied 17-year moving windows to analyze the patterns of R_(NDVI-Prep)in different seasons from 1982 to 2015 and found that the latitude of the pixels where vegetation showed strong dependency on water in summer was higher than those in spring and autumn.In arid and semi-arid regions of central Asia,the vegetation showed greater dependency on water in spring and summer than in autumn.Meanwhile,in the arid and semi-arid regions of the northwestern parts of South Asia Sub-Continent and in the rainforest regions of southeastern Asia,the vegetation showed greater dependency on water in summer and autumn than in spring,especially in autumn with a more concentrated distribution.The results will improve the understanding of vegetation response to precipitation across different eco-regions in Eurasia,and also provide a base theory for policy making for regional development.
中文关键词	欧亚大陆 ; 植被生长 ; 降水 ; 生态区 ; 季节变化
英文关键词	Eurasia vegetation growth precipitation eco-region seasonal changes
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Life Sciences & Biomedicine - Other Topics
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6381288
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238162
作者单位	孙立群, 中国科学院深圳先进技术研究院;;香港大学土木工程系, ;;, 深圳;;, ;;香港 518055;;999077.; 李晴岚, 中国科学院深圳先进技术研究院, 深圳, 广东 518055, 中国.; 陈骥, 香港大学土木工程系, 999077, 香港.; 牛俊, 中国农业大学中国农业水问题研究中心, 北京 100083, 中国.
推荐引用方式 GB/T 7714	孙立群,李晴岚,陈骥,等. 欧亚大陆不同生态区植被生长对降水响应的季节变化规律[J]. 中国农业大学,2018,38(22):8051-8059.
APA	孙立群,李晴岚,陈骥,&牛俊.(2018).欧亚大陆不同生态区植被生长对降水响应的季节变化规律.生态学报,38(22),8051-8059.
MLA	孙立群,et al."欧亚大陆不同生态区植被生长对降水响应的季节变化规律".生态学报 38.22(2018):8051-8059.